Identification of Intermetallic Phases Limiting the Growth of Austenite Grains in the Low-Pressure Carburizing Process
This article presents the results of a study to identify intermetallic phases whose role is to limit austenite grain growth in the low-pressure carburizing process. A drawback of high-temperature low-pressure carburizing is the austenite grain growth during the process. Using low-pressure carburizin...
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MDPI AG
2023-12-01
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Online Access: | https://www.mdpi.com/2073-4352/13/12/1683 |
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author | Konrad Dybowski Leszek Klimek |
author_facet | Konrad Dybowski Leszek Klimek |
author_sort | Konrad Dybowski |
collection | DOAJ |
description | This article presents the results of a study to identify intermetallic phases whose role is to limit austenite grain growth in the low-pressure carburizing process. A drawback of high-temperature low-pressure carburizing is the austenite grain growth during the process. Using low-pressure carburizing with pre-nitriding technology (PreNitLPC<sup>®</sup>) offers the possibility of reducing austenite grain growth. This technology involves the application of doses of ammonia during the heating stage of the steel, at the carburizing temperature, to introduce nitrogen into the surface layer of the steel and to form nitrides. It is these phases that cause restrictions on austenite grain growth during carburizing. The research carried out in this article was aimed at identifying these phases. The research was carried out on one of the basic steels used for carburizing—16MnCr5 steel. The carburizing of this steel with and without pre-nitriding was performed, followed by an evaluation of the austenite grain size after these processes and the identification of the intermetallic phases present in the surface layer of the steel. |
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spelling | doaj.art-f33c509183e44ad2a414b1ba99093a742023-12-22T14:01:59ZengMDPI AGCrystals2073-43522023-12-011312168310.3390/cryst13121683Identification of Intermetallic Phases Limiting the Growth of Austenite Grains in the Low-Pressure Carburizing ProcessKonrad Dybowski0Leszek Klimek1Institute of Materials Science and Engineering, Lodz University of Technology, 90-537 Lodz, PolandInstitute of Materials Science and Engineering, Lodz University of Technology, 90-537 Lodz, PolandThis article presents the results of a study to identify intermetallic phases whose role is to limit austenite grain growth in the low-pressure carburizing process. A drawback of high-temperature low-pressure carburizing is the austenite grain growth during the process. Using low-pressure carburizing with pre-nitriding technology (PreNitLPC<sup>®</sup>) offers the possibility of reducing austenite grain growth. This technology involves the application of doses of ammonia during the heating stage of the steel, at the carburizing temperature, to introduce nitrogen into the surface layer of the steel and to form nitrides. It is these phases that cause restrictions on austenite grain growth during carburizing. The research carried out in this article was aimed at identifying these phases. The research was carried out on one of the basic steels used for carburizing—16MnCr5 steel. The carburizing of this steel with and without pre-nitriding was performed, followed by an evaluation of the austenite grain size after these processes and the identification of the intermetallic phases present in the surface layer of the steel.https://www.mdpi.com/2073-4352/13/12/1683thermo-chemical treatmentlow-pressure carburizingpre-nitridingintermetallic phases |
spellingShingle | Konrad Dybowski Leszek Klimek Identification of Intermetallic Phases Limiting the Growth of Austenite Grains in the Low-Pressure Carburizing Process Crystals thermo-chemical treatment low-pressure carburizing pre-nitriding intermetallic phases |
title | Identification of Intermetallic Phases Limiting the Growth of Austenite Grains in the Low-Pressure Carburizing Process |
title_full | Identification of Intermetallic Phases Limiting the Growth of Austenite Grains in the Low-Pressure Carburizing Process |
title_fullStr | Identification of Intermetallic Phases Limiting the Growth of Austenite Grains in the Low-Pressure Carburizing Process |
title_full_unstemmed | Identification of Intermetallic Phases Limiting the Growth of Austenite Grains in the Low-Pressure Carburizing Process |
title_short | Identification of Intermetallic Phases Limiting the Growth of Austenite Grains in the Low-Pressure Carburizing Process |
title_sort | identification of intermetallic phases limiting the growth of austenite grains in the low pressure carburizing process |
topic | thermo-chemical treatment low-pressure carburizing pre-nitriding intermetallic phases |
url | https://www.mdpi.com/2073-4352/13/12/1683 |
work_keys_str_mv | AT konraddybowski identificationofintermetallicphaseslimitingthegrowthofaustenitegrainsinthelowpressurecarburizingprocess AT leszekklimek identificationofintermetallicphaseslimitingthegrowthofaustenitegrainsinthelowpressurecarburizingprocess |